Steam or other fluid pressure regulator.



W. H. OGONNOR.

STEAM OR OTHER FLUID PRESSURE REGULATOR.

APPLICATION FILED MAR. 25, 1908.

941,092. Patented Nov. 23, 1909.

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WILLIAIVI I-I.

OGONNOR, 0F NEWARK, NEW JERSEY.

STEAM OR OTHER FLUID PRESSURE REGULATOR.

T 0 all whom 'it may concern:

Be it known that I, l/VILLIAM H. OCON- NOR, a citizen of the UnitedStates, residing in Newark, in the county of Essex and State of NewJersey, have invented a new and useful Improvement in Steam or otherFluid Pressure Regulators, of which the following is a specification.

My invention relates to improvements in regulators for controlling ormaintaining the pressure of steam or other fluid.

The object of my invention is to provide a steam or other fluid pressureregulator of a simple, efiicient and durable construction, which will becertain and reliable in action which will respond quickly to slightvariations of pressure in the outlet or delivery pipe or connection, inwhich all the parts will be readily accessible, and especially theauxiliary valve, which is the most delicate part of the regulator, andwhich will be more readily adapted for railroad use than the regulatorsheretofore in use.

My invention consists in the means I employ to practically accomplishthis object or result. That is to say, it consists in a fluid pressureregulator having a body or main shell, provided with a supply or inletand an outlet or delivery arranged atright angles to each other,combined with a main valve and piston and an auxiliary valve, adjustingscrew and spring, arranged at right angles to the main valve and piston.

It further consists in connection with these parts, in the provision ofmeans for balancing the pressure upon the auxiliary valve, and thuscausing the same to act .quickly and certainly and to respond with greatdelicacy to slight variations of steam or other fluid pressure in thedelivery system.

It further consists in the novel construction of parts and devices andin the novel combinations of parts and devices herein shown anddescribed and more particularly specified in the claims.

In the accompanying drawing forming a part of this specification, Figure1 is a central vertical section of a fluid pressure regulator embodyingmy invention. Figs. 2 and 3 are sections on lines 2-2 and 83respectively of Fig. 1.

In the drawing, A represents .the main body or shell of the regulator,the same having a supply or inlet A connected with the supply pipe B bya coupling B and an out- Specification of Letters Patent.

Application filed March 25,

Patented Nov. 23, 1909. 1908. Serial No. 423,205.

let or delivery A which is arranged at right angles to the inlet A andconnected with the outlet or delivery pipe O by a coupling C D is themain valve closing the main port a between the inlet A and outlet Aagainst valve seat a its stem (Z being surrounded by a spring d whichbears against the screw cap A in which the lower end of the stem (Z hasa sliding bearing.

The main body or shell of the regulator is furnished with a pistonchamber or cylin der A to receive the hanging piston E which rests onthe upper end of the stem (Z of the main valve D. The piston E is oflarger diameter or area than the valve D so that the fluid pressure onthe upper or outer end of the piston E may exceed that on the main valveD sufliciently to overcome the tension of the spring (Z which tends tohold the main valve D closed. The piston E is furnished with a packing Eand is preferably made of inverted cup shape, preferably about asillustrated in the drawing, so that its contact with the piston stem (Zmay be at or above its center of gravity and thus materially reduce allliability of the hanging piston sticking or cramping in the cylinder orpiston chamber A of the shell A. The main shell A. is provided with oneor more small ports or openings a into the piston chamber A from theoutlet or delivery side of the main valve D so that the outlet ordelivery pressure of the fluid may act against this side of the pistonas well as against the upper face of the main valve D.

F is the auxiliary valve shell, the same being preferably made in aseparate piece from the main shell A and securely connected thereto byany suitable means; and F is the spring case or shell connected to theauxiliary valve shell F by screw threads f.

G is the auxiliary valve arranged at right angles to the main valve andpiston and having a stem 9 abutting at one end against the diaphragm Hwhich is interposed be tween the auxiliary valve shell F and the springcase or shell F and between the auxiliary stem 9 and the adjusting screwK and pressure regulating spring K which bears at one end against theflanged nut K of the adjusting screw. To give the adjusting screw anextended bearing against the diaphragm, it is provided with a bearing iplate or cap K The adjusting screw K is furnished with a handle K forturning it.

The auxiliary valve shell F is furnished with a chamber f for theauxiliary valve and a valve seat 7, and it is also provided with achamber 7' for the diaphragm, the diaphragm chamber 7" being in partformed in the adjacentfaee of the spring case or shell F The auxiliaryvalve chamber 7' communicates with the inlet side A of the main shell Athrough a port f in the auxiliary shell F, and a port a in the mainshell A. The auxiliary valve chamber 7' also communicates with thepiston chamber A through a port f in the auxiliary shell F, which closesthe upper end of the piston chamber A The diaphragm chamber 7'communicates With the outlet or delivery side A of the main shell Athrough a port in the auxiliary shell and the connecting port a in themain shell A.

The auxiliary shell F is furnished with a screw plug F which closes theouter end of the auxiliary valve chamber f and is provided with a pocketF to receive a spring 9 which bears against the auxiliary valve at theopposite end of the diaphragm H.

To enable the fluid pressure to be balanced on the auxiliary valve andthus increase its quickness, certainty and delicacy of response tovariations of fluid pressure in the delivery or outlet chamber A of thepressure regulator, I provide the auxiliary shell F with a port orcommunication 7 between the diaphragm chamber and the chamber 7' at therear end of the auxiliary valve stem G, said connecting port orcommunication being preferably formed in the auxiliary shell I Theoperation is as follows: When the steam or other fluid pressure in theoutlet or delivery chamber r 2 of the regulator falls below the point ordegree required, and to which the tension of the pressure controllingspring K of the regulator is set by the adjusting screw K, said springacts against the diaphragm H and opens the auxiliary valve Gr againstthe tension of its light spring 9 thus permitting further steam or fluidto pass through the ports a from the inlet chamber A of the regulatorinto the auxiliary valve chamber and through the port f into the pistonchamber A*, and thus cause the piston E to open the main valve D andadmit the steam into the delivery chamber A until the pressure thereinis restored to the required degree; and then this higher steam pressurein the delivery chamber A passing through the ports a f into thediaphragm chamber f will act upon the diaphragm and retract the pressureregulating spring K and thus permit the spring g to close the auxiliaryvalve G and thereby allow the initial pressure acting under the mainvalve D to force it to its seat, the pis ton in this operation beingacted upon by the fluid passing through the ports (F. In practicaloperation, however, it will of course be understood that the opening andclosing movement of the main valve is ordinarily not such as to entirelyclose the port a, but only to check or retard the flow of steam or otherfluid through the same as required to maintain the proper pressure inthe delivery chamber A or the apparatus to which the steam is deliveredtherefrom.

-While in the drawing 1 have illustrated the shell portion of theregulator as being made in three parts A, F and F it will be understoodthat it may be composed of a greater or less number of pieces. Theconstruction shown in the drawing is that which I prefer to use.

I claim 1. A fluid pressure regulator comprising a main shell or bodyhaving its inlet and delivery arranged at right angles to each other,

in combination with a main valve and piston and an auxiliary valve actedupon by the steam pressure at both ends thereof, a diaphragm, pressureregulating spring and adjusting screw, said main valve and piston beingat right angles to the auxiliary valve, substantially as specified.

2. A fluid pressure regulator comprising a main shell or body having itsinlet and de- 7 livery arranged at right angles to each other, incombination with a main valve and hanging piston and an auxiliary valveacted upon by the steam pressure at both ends thereof, a diaphragm, andpressure regulating spring adjusting screw, substantially as specified.

3. A fluid pressure regulator comprising a main shell or body having itsinlet and'delivery arranged at right angles to each other, incombination with a main valve and pis ton, and an auxiliary valve actedupon by the steam pressure at both ends thereof, a diaphragm, pressureregulating spring and adjusting screw, and means for admitting fluidpressure to each end of the auxiliary valve to balance the same,substantially as specified.

l. A fluid pressure regulator comprising a main shell or body having itsinlet and delivery arranged at right angles to each other, incombination with a main valve and piston, and an auxiliary valve actedupon by the steam pressure at both ends thereof, a diaphra gm, pressureregulating spring and adjusting screw, said piston being of an inve'tedcup shape and resting on the upper end of the stem of the main valve,substantially as specified.

In a fluid pressure regulator,'the combination with a main shell or bodyhaving an inlet chamber and an outlet chamber, a piston chamber and amain valve seat, of a main valve, a spring therefor, a main valve stem,an auxiliary valve and auxiliary valve shell having a valve chambercommunicating with the inlet chamber of the main shell and with thepiston chamber, and provided with a diaphragm and diaphragm chamber incommunication with the outlet chamber of the main shell, said auxiliaryvalve shell having a connecting port to balance the pressure on theauxiliary valve, substantially as specified.

6. In a fluid pressure regulator, the combination with a main shell orbody having an inlet chamber and an outlet chamber, a piston chamber anda main valve seat, of a main valve, a spring therefor, a main valvestem, a piston resting on said main valve stem, an auxiliary valve andauxiliary valve shell having a valve chamber communicating with theinlet chamber of the main shell and with the piston chamber, andprovided with a diaphragm and diaphragm chamber in communication withthe outlet chamber of the main shell, said auxiliary valve shell havinga connecting port to balance the pressure on the auxiliary valve, apressure regulating spring, an adjusting screw and a spring shellinclosing said spring and adjusting screw, substantially as specified.

7. I11 a fluid pressure regulator, the combination with a main shell orbody having an inlet chamber and an outlet chamber, a piston chamber anda main valve seat, of a main valve, a spring therefor, a main valvestem, a piston resting on said main valve stem, an auxiliary valve andauxiliary valve shell having a valve chamber communicating with theinlet chamber of the main shell, and with the piston chamber, andprovided with a diaphragm and diaphragm chamber in communication withthe outlet chamber of the main shell, said auxiliary valve shell havinga connecting port to balance the pressure on the auxiliary valve, apressure regulating spring, an adjusting screw and a spring shellinclosing said spring and adjusting screw, and a spring bearing againstthe opposite end of the auxiliary valve from the diaphragm,substantially as specified.

8. In a fluid pressure regulator, the combination with a main shell orbody having an inlet chamber and an outlet chamber, a piston chamber anda main valve seat, of a main valve, a spring therefor, a main valvestem, a piston resting on said main valve stem, an auxiliary valve andauxiliary valve shell having a valve chamber communicating with theinlet chamber of the main shell and with the piston chamber, andprovided with a diaphragm and diaphragm chamber in communication withthe outlet chamber of the main shell, said auxiliary valve shell havinga connecting port to balance the pressure on the auxiliary valve, apressure stem, a piston resting on said main valve 1 regulating spring,an adjusting screw, and a spring shell inclosing said spring andadjusting screw, said inlet and outlet chambers of the main shell beingarranged at an angle to each other, substantially as specified.

9. In a fluid pressure regulator, the combination with a main shell orbody having an inlet chamber and an outlet chamber, a piston chamber anda main valve seat, of a main valve, a spring therefor, a main valvestem, a piston resting on said main valve stem, an auxiliary valve andauxiliary valve shell having a valve chamber communicating with theinlet chamber of the main shell and with the piston chamber, andprovided with a diaphragm and diaphragm chamber in communication withthe outlet chamber of the main shell said auxiliary valve shell having aconnecting port to balance the pressure on the auxiliary valve, apressure regulating spring, an adjusting screw and a spring shellinclosing said spring and adjusting screw, said main and auxiliaryvalves being at right angles to each other, substantially as specified.

10. In a fiuid pressure regulator, the combination with a main shellhaving an inlet chamber A and outlet chamber A and provided with a mainport a between said inlet and outer chambers, and with a valve seat asurrounding said port a, said main shell being also provided with apiston chamber A, and with a port a connecting said piston chamber withsaid outlet chamber, of a main valve D closing said main port a andprovided with a stem (Z and a spring 6Z1 acting to hold said main valveI) closed, a piston E adapted to reciprocate in said piston chamber Aand resting'on said main valve stem (Z, an auxiliary valve shell Fhaving a valve chamber f and a diaphragm chamber f an auxiliary valve Greciprocating in said auxiliary valve shell F, said main shell A andauxiliary shell F having connecting ports a f communicating between saidinlet chamber A and valve chamber f and connecting ports a and fcommunicating between said diaphragm chamber f and outlet chamber A saidauxiliary shell F having a connecting port f between said auxiliaryvalve chamber f and said piston chamber A, a spring inclosing shell Fsecured to the end of said auxiliary valve shell F, a diaphragm Hbetween said auxiliary shell F and spring inclosing shell F a pressurecontrolling spring K acting upon said diaphragm, and an adjusting screwK for regulating the tension of said spring K substantially asspecified.

WILLIAM H. OCONNOR.

Vitnesses;

CHARLES A. MGMURRAY, THOMAS D. RYON.

